MagicDrill DRC Chamfering attachment  Chamfering attachment  Drilling and chamfering simultaneously By using the chamfering attachment, the SS-DRC type can drill and chamfer simultaneously.  Holder L φDs LS φD φD2 V Length adjustment drilling depth Applicable Drill Dimension (mm) Description Std. Shank Dia. φDs Applicable Inserts φD φD2 L LS V S20-CH10 N 10 20 29 122 52 17 CT08T2-45A S32-CH12 N 12 38 133 21 S32-CH14 N 14 32 40 137 62 16 CT12T3-45A S32-CH16 N 16 42 141 19 S32-CH18 N 18 47 144 15 K Note) Chamfering attachment is dedicated for Straight Shank SS-DRC type. It cannot be used for Flanged Shank SF-DRC type.  Drilling and chamfering depths 90˚ Ts Drilling T DRA DRC DRX φDc Drill Dia. (mm) Drilling Depth (mm) Chamfering DRS dimension (mm) Applicable DRZ φDc T (3D Drilling) T (5D Drilling) T (8D Drilling) Ts Chamfering Holder min. max. min. max. min. max. min. max. Ts 100 Ts max. DRW φ7.94 φ8.49 11 19 21 37 47 63 φ8.50 φ8.99 12 21 24 40 51 67 2.5 5.0 S20-CH10 φ9.00 φ9.49 12 23 27 43 56 72 φ9.50 φ9.99 13 25 31 47 61 77 φ10.00 φ10.49 13 26 28 49 60 81 φ10.50 φ10.99 14 28 31 52 64 85 3.5 7.0 S32-CH12 φ11.00 φ11.49 14 30 34 55 69 90 φ11.50 φ11.99 15 32 37 58 73 94 φ12.00 φ12.49 15 30 41 56 79 94 φ12.50 φ12.99 17 32 44 59 83 96 4.0 8.0 S32-CH14 φ13.00 φ13.49 19 34 47 62 88 103 φ13.50 φ13.99 21 36 51 66 93 108 φ14.00 φ14.49 19 37 50 68 94 112 φ14.50 φ14.99 21 39 53 71 98 116 4.0 8.0 S32-CH16 φ15.00 φ15.99 25 43 59 77 107 125 φ16.00 φ16.99 30 44 66 80 117 131 4.0 8.0 S32-CH18 φ17.00 φ17.99 35 49 73 87 127 141 Ts 100: Max. chamfering dimension at the full feed. Ts max.: Max. chamfering dimension at a 50% feed reduction. (Max. chamfering dimension of machining possible without step feeding)  : Std. Item K24